The Marangoni convection during isopropanol volatilization to a single nitrogen bubble with the deformable interface is investigated by combining the Volume of Fluid model and the Level Set method. Both the deformation of the bubble and the thermal effect accompanying with the mass transfer are taken into account. The Marangoni convection is investigated under non-gravity and gravity conditions respectively. The flow, temperature and concentration field information are acquired, and the influence of the Marangoni convection on the mass transfer is distinguished. The mass transfer process of a single rising bubble with different diameters in the stationary isopropanol aqueous solution is investigated under different gravities, and occurrence of the Marangoni convection is discriminated.

通过结合流体体积模型和水平集方法研究了异丙醇挥发到具有可变形界面的单个氮气气泡期间的Marangoni对流。气泡的变形和传质带来的热效应都被考虑在内。分别在非重力和重力条件下研究了Marangoni对流。获取流场，温度和浓度场信息，并区分Marangoni对流对传质的影响。研究了不同重力下单个直径不同的上升气泡在固定异丙醇水溶液中的传质过程，并判别了马兰戈尼对流的发生。